如何使jqgrid组标题在悬停时高亮显示

使用jQuery和merolled jqueryui，我有一个jqgrid，在几个组标题下有列。按预期悬停时，每个列标题都会显示高亮显示颜色，但悬停时组标题从不高亮显示。当鼠标悬停时，jqgrid组标题能否高亮显示？ 这是有问题的代码

$(gridnm).jqGrid('setGroupHeaders', {
    useColSpanStyle: true, 
    groupHeaders:[
        {startColumnName: 'fld00', numberOfColumns: 4, classname: 'colheader', titleText: '<b>Incoming Totals</b>'},
        {startColumnName: 'fld04', numberOfColumns: 3, classname: 'colheader', titleText: '<b>Unanswered Totals</b>'},
        {startColumnName: 'fld07', numberOfColumns: 3, classname: 'colheader', titleText: '<b>Outgoing Totals</b>'},
        {startColumnName: 'fld10', numberOfColumns: 3, classname: 'colheader', titleText: '<b>All Totals</b>'}
    ]
});

$（gridnm）.jqGrid（'setGroupHeaders'{
使用科尔斯潘风格：正确，
组标题：[
{startColumnName:'fld00'，numberOfColumns:4，classname:'colheader'，titleText:'Incoming Totals'}，
{startColumnName:'fld04'，numberOfColumns:3，classname:'colheader'，titleText:'Unanswered Totals'}，
{startColumnName:'fld07'，numberOfColumns:3，classname:'colheader'，titleText:'Outgoing Totals'}，
{startColumnName:'fld10'，numberOfColumns:3，classname:'colheader'，titleText:'All Totals'}
]
});

我的答案解决了你的问题吗？@马克：对不起，没有。